Move about://-related constants from //content to //url

android_webview/renderer/aw_content_renderer_client.cc

Index: android_webview/renderer/aw_content_renderer_client.cc
diff --git a/android_webview/renderer/aw_content_renderer_client.cc b/android_webview/renderer/aw_content_renderer_client.cc
index 400d009c93c99dff679b161b3ada9ab5df2c8705..d0cc060b24343d258ce388f8ac99dbbce4f738c8 100644
--- a/android_webview/renderer/aw_content_renderer_client.cc
+++ b/android_webview/renderer/aw_content_renderer_client.cc
@@ -98,7 +98,7 @@ bool AwContentRendererClient::HandleNavigation(
   // So we filter out non-top about:blank navigations here.
   if (frame->parent() && (gurl.SchemeIs(url::kHttpScheme) ||
                           gurl.SchemeIs(url::kHttpsScheme) ||
-                          gurl.SchemeIs(content::kAboutScheme)))
+                          gurl.SchemeIs(url::kAboutScheme)))
     return false;
 
   // use NavigationInterception throttle to handle the call as that can